Pestilent
Pronunciation : Pes"ti*lent
Part of Speech : a.
Etymology : [L. pestilens, -entis, fr. pestis pest: cf. F. pestilent.]
Definition : Defn: Pestilential; noxious; pernicious; mischievous. "Corrupt and pestilent." Milton. "What a pestilent knave is this same!" Shak.
Source : Webster's Unabridged Dictionary, 1913